Coherent control of interacting electrons in quantum dots via navigation in the energy spectrum

Quantum control of the wave function of two interacting electrons confined in quasi-one-dimensional double-well semiconductor structures is demonstrated. The control strategies are based on the knowledge of the energy spectrum as a function of an external uniform electric field. When two low-lying l...

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Guardado en:
Detalles Bibliográficos
Publicado: 2007
Materias:
Electric fields
Electron energy levels
Molecular interactions
Spectrum analysis
Wave functions
Zener effect
Energy spectrum
Interacting electrons
Quantum control
Semiconductor structures
Semiconductor quantum dots
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v99_n3_p_Murgida
http://hdl.handle.net/20.500.12110/paper_00319007_v99_n3_p_Murgida
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00319007_v99_n3_p_Murgida
record_format dspace
spelling paper:paper_00319007_v99_n3_p_Murgida2025-07-30T17:39:43Z Coherent control of interacting electrons in quantum dots via navigation in the energy spectrum Electric fields Electron energy levels Molecular interactions Spectrum analysis Wave functions Zener effect Energy spectrum Interacting electrons Quantum control Semiconductor structures Semiconductor quantum dots Quantum control of the wave function of two interacting electrons confined in quasi-one-dimensional double-well semiconductor structures is demonstrated. The control strategies are based on the knowledge of the energy spectrum as a function of an external uniform electric field. When two low-lying levels have an avoided crossing, our system behaves dynamically to a large extent as a two-level system. This characteristic is exploited to implement coherent control strategies based on slow (adiabatic passage) and rapid (diabatic Landau-Zener transition) changes of the external field. We apply this method to reach desired target states that lie far in the spectrum from the initial state. © 2007 The American Physical Society. 2007 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v99_n3_p_Murgida http://hdl.handle.net/20.500.12110/paper_00319007_v99_n3_p_Murgida
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Electric fields
Electron energy levels
Molecular interactions
Spectrum analysis
Wave functions
Zener effect
Energy spectrum
Interacting electrons
Quantum control
Semiconductor structures
Semiconductor quantum dots
spellingShingle Electric fields
Electron energy levels
Molecular interactions
Spectrum analysis
Wave functions
Zener effect
Energy spectrum
Interacting electrons
Quantum control
Semiconductor structures
Semiconductor quantum dots
Coherent control of interacting electrons in quantum dots via navigation in the energy spectrum
topic_facet Electric fields
Electron energy levels
Molecular interactions
Spectrum analysis
Wave functions
Zener effect
Energy spectrum
Interacting electrons
Quantum control
Semiconductor structures
Semiconductor quantum dots
description Quantum control of the wave function of two interacting electrons confined in quasi-one-dimensional double-well semiconductor structures is demonstrated. The control strategies are based on the knowledge of the energy spectrum as a function of an external uniform electric field. When two low-lying levels have an avoided crossing, our system behaves dynamically to a large extent as a two-level system. This characteristic is exploited to implement coherent control strategies based on slow (adiabatic passage) and rapid (diabatic Landau-Zener transition) changes of the external field. We apply this method to reach desired target states that lie far in the spectrum from the initial state. © 2007 The American Physical Society.
title Coherent control of interacting electrons in quantum dots via navigation in the energy spectrum
title_short Coherent control of interacting electrons in quantum dots via navigation in the energy spectrum
title_full Coherent control of interacting electrons in quantum dots via navigation in the energy spectrum
title_fullStr Coherent control of interacting electrons in quantum dots via navigation in the energy spectrum
title_full_unstemmed Coherent control of interacting electrons in quantum dots via navigation in the energy spectrum
title_sort coherent control of interacting electrons in quantum dots via navigation in the energy spectrum
publishDate 2007
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v99_n3_p_Murgida
http://hdl.handle.net/20.500.12110/paper_00319007_v99_n3_p_Murgida
_version_ 1840326588728606720

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